504666645851 has 16 divisors (see below), whose sum is σ = 521831116800. Its totient is φ = 487558120800.

The previous prime is 504666645827. The next prime is 504666645869. The reversal of 504666645851 is 158546666405.

It is a cyclic number.

It is not a de Polignac number, because 504666645851 - 2²² = 504662451547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504666645751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71287130 + ... + 71294208.

It is an arithmetic number, because the mean of its divisors is an integer number (32614444800).

Almost surely, 2^504666645851 is an apocalyptic number.

504666645851 is a deficient number, since it is larger than the sum of its proper divisors (17164470949).

504666645851 is a wasteful number, since it uses less digits than its factorization.

504666645851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10690.

The product of its (nonzero) digits is 20736000, while the sum is 56.

The spelling of 504666645851 in words is "five hundred four billion, six hundred sixty-six million, six hundred forty-five thousand, eight hundred fifty-one".